II-C "Observations Made on Karentes Beach" by Professor W. W. 

 Williams and Miss C. A. M. King, Cambridge University 



Translation of a technical note appearing in the 

 Information Bulletin of the Comite Central d'Oceano- 

 graphie et d 'Etude des Cotes in December 1950. Bar 

 format ione were studied in detail from surveys made 

 over a 3 -year period on a beach area subject to a 

 small tidal range (less than 1/2 foot). 



II-A "Comparison of Observed Wave Direction With a Refraction 

 Diagram" by Donald R. Forrest 



During a period of exceptionally good visibility obser- 

 vations of offshore wave direction at Mission Bay, 

 California were made with the transit sighting bar 

 (described in Vol. 4 - No. 2 of Bulletin) and compared 

 with directions obtained from wave refraction analysis. 

 On the whole, agreement is good. 



"Beach Erosion Studies" 



Summary of completed cooperative study report of Nan- 

 tasket Beach, Massachusetts is presented. Listing of 

 those cooperative studies still in progress also 

 included. 



"Beach Erosion Literature" 



Listing of subjects and authors of papers presented at 

 the Institution on Coastal Engineering, University of 

 California, at a conference in Long Beach, California. 



ISSUE NO. 3 - 1 July 1951 



II-C "Bypassing Littoral Drift at a Harbor Entrance" 



E 



F Translation of a pamphlet in Spanish entitled "Draja 



Fija" published in 1950 by "Junta Directiva de Puertos 

 Libres Mexicanos". The shoaling problem in the Free 

 Port of Salina Cruz, Mexico is described, and a sta- 

 tionary dredging plant nearing completion for bypassing 

 the littoral drift is described in detail with photo- 

 graphs . 



I-A "Calculation of Diffracted Wave Height Behind A Semi- 

 Infinite Jetty" by C. Carry and E. Chapus, La Houille 

 Blanche, January -February 1951 



Curves giving diffracted wave height for incident waves 

 normal, 45 degrees and 135 degrees to a breakwater are 



60 



